公开(公告)号：EP4439845A1

公开(公告)日：2024-10-02

申请号：EP22898667.5

申请日：2022-11-25

申请人： Asahi Kasei Kabushiki Kaisha

发明人： MORI, Shohei ,  UCHIDA, Kazunori ,  HAMASAKI, Shinya

IPC分类号： H01M50/489 ,  H01G11/52 ,  H01M50/417 ,  H01M50/431 ,  H01M50/434 ,  H01M50/437 ,  H01M50/44 ,  H01M50/443 ,  H01M50/446 ,  H01M50/451 ,  H01M50/454 ,  H01M50/457 ,  H01M50/494

CPC分类号： Y02E60/10 ,  H01M50/494 ,  H01M50/434 ,  H01M50/489 ,  H01M50/457 ,  H01M50/446 ,  H01M50/451 ,  H01M50/431 ,  H01M50/454 ,  H01M50/443 ,  H01M50/437 ,  H01G11/52 ,  H01M50/417 ,  H01M50/44

摘要： Provided are: a separator for an electric power storage device, the separator having high liquid absorption and high strength; and an electric power storage device in which the separator is used. The separator for an electric power storage device includes a microporous membrane (A) containing an inorganic filler and a polyolefin resin. The microporous membrane (A) has a MFR of 0.05-5 inclusive, includes not less than 20 mass% but less than 100 mass% of the organic filler, has an average pore diameter of 100-1500 nm inclusive for the pores in a cross-section ND-MD, and has an air permeability of 340 sec/100 mL or less.

公开(公告)号：EP4404367A3

公开(公告)日：2024-08-07

申请号：EP24181073.8

申请日：2019-06-21

申请人： LG Energy Solution, Ltd.

发明人： Park, Su-Jin ,  Kim, Chan-Jong ,  Lee, Sang-Joon

IPC分类号： H01M50/489 ,  H01M10/052 ,  H01G11/52 ,  H01M50/403 ,  H01M50/417 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/491 ,  H01G9/02 ,  H01M50/409 ,  H01M50/443

CPC分类号： H01M10/052 ,  H01G11/52 ,  Y02E60/10 ,  H01M50/403 ,  H01M50/417 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/489 ,  H01M50/491 ,  H01G9/02 ,  H01M50/409 ,  H01M50/443

摘要： Provided is a separator for an electrochemical device. The separator includes a porous substrate made of a porous polymer film having an excellent compressibility and permanent strain, wherein the porous substrate has excellent physical strength and durability and ensures a high breakdown voltage while using a heat resistant layer having a small thickness, and thus shows a low possibility of short-circuit generation. In addition, the separator may further include a heat resistant layer including inorganic particles, on the surface of the porous substrate. Herein, it is possible to further improve the compressibility, maximum compressibility and permanent strain characteristics depending on types of inorganic particles.

公开(公告)号：EP3787067B1

公开(公告)日：2024-08-07

申请号：EP19822265.5

申请日：2019-06-21

IPC分类号： H01M50/489 ,  H01M10/052 ,  H01G11/52 ,  H01M50/403 ,  H01M50/417 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/491 ,  H01G9/02 ,  H01M50/409 ,  H01M50/443

CPC分类号： H01M10/052 ,  H01G11/52 ,  Y02E60/10 ,  H01M50/403 ,  H01M50/417 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/489 ,  H01M50/491 ,  H01G9/02 ,  H01M50/409 ,  H01M50/443

公开(公告)号：EP3657574B1

公开(公告)日：2024-07-03

申请号：EP18835510.1

申请日：2018-07-17

IPC分类号： H01M4/02 ,  H01G11/26 ,  H01G11/52 ,  H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M10/04 ,  H01M10/0562 ,  H01M10/058 ,  H01M10/0585 ,  H01M50/414 ,  H01M50/431 ,  H01M50/443 ,  H01M50/446 ,  H01M50/42 ,  H01M50/46

CPC分类号： H01M4/02 ,  H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M10/04 ,  H01M10/0562 ,  H01M10/058 ,  H01M10/0585 ,  H01G11/26 ,  H01G11/52 ,  Y02E60/10 ,  Y02P70/50 ,  H01M50/46 ,  H01M50/42 ,  H01M50/431 ,  H01M50/443 ,  H01M50/446 ,  H01M50/414

公开(公告)号：EP4366068A1

公开(公告)日：2024-05-08

申请号：EP22846239.6

申请日：2022-07-20

申请人： LG Chem, Ltd.

发明人： KIM, Bong-Tae ,  LEE, Joo-Sung ,  MUN, Sung Cik ,  LEE, A-Young ,  JUNG, Kil-An ,  HAN, Sung-Jae

IPC分类号： H01M50/451 ,  H01M50/489 ,  H01G11/52 ,  H01M50/46

CPC分类号： Y02E60/10 ,  H01M50/489 ,  H01M50/451 ,  H01M50/46 ,  H01G11/52

摘要： The present disclosure relates to a separator for an electrochemical device comprising an inorganics-containing porous layer on at least one surface of a porous polymer support, and comprising inorganic fillers and a binder polymer, wherein the binder polymer comprises a first binder polymer, and the first binder polymer is poly(vinylidene fluoride-co-hexafluoropropylene) having a tan δ peak at -18°C to -5°C when measured by Dynamic Mechanical Analysis, and an electrochemical device comprising the same. The separator for an electrochemical device according to an embodiment of the present disclosure has improved adhesion property with electrode and safety at high temperature.

公开(公告)号：EP4358273A1

公开(公告)日：2024-04-24

申请号：EP22867391.9

申请日：2022-09-07

申请人： Asahi Kasei Kabushiki Kaisha

发明人： NAKAGAWA, Yoshitaka

IPC分类号： H01M50/489 ,  H01G11/52 ,  H01M50/414 ,  H01M50/434 ,  H01M50/437 ,  H01M50/443 ,  H01M50/446 ,  H01M50/449 ,  H01M50/451 ,  H01M50/457 ,  H01M50/463

CPC分类号： Y02E60/10 ,  H01M50/434 ,  H01M50/489 ,  H01M50/457 ,  H01M50/446 ,  H01M50/414 ,  H01M50/451 ,  H01M50/463 ,  H01M50/443 ,  H01M50/437 ,  H01M50/449 ,  H01G11/52

摘要： Provided is a separator for a power storage device, said separator comprising a substrate and a thermoplastic polymer-containing layer that is formed on at least one substrate surface of the substrate and contains a thermoplastic polymer, wherein the thermoplastic polymer-containing layer has a dot pattern, the dot diameter (a) of 20 µm to 1,000 µm, the inter-dot distance (b) is 100 µm to 3,000 µm, the dot diameter (a) and the inter-dot distance (b) satisfy the relationship expressed by the expression: [inter-dot distance] / [dot diameter] = 0.5 to 4, and the contact angle between the thermoplastic polymer-containing layer and an electrolyte is 0° to 20°.

公开(公告)号：EP4310939A1

公开(公告)日：2024-01-24

申请号：EP22807559.4

申请日：2022-05-13

申请人： GS Yuasa International Ltd.

发明人： ITAKURA Daichi ,  SOGO Yasuhiro ,  IGUCHI Takaaki

IPC分类号： H01M4/136 ,  H01M4/58 ,  H01M4/587 ,  H01G11/06 ,  H01G11/30 ,  H01G11/32 ,  H01G11/52 ,  H01M10/052 ,  H01M50/417 ,  H01M50/443 ,  H01M50/489

摘要： An energy storage device according to one aspect of the present invention includes: a positive electrode containing a positive active material and a conductive agent; a negative electrode containing a negative active material; and a separator interposed between the negative electrode and the positive electrode, in which a content of the conductive agent in the positive electrode is 6% by mass or less, the positive active material contains a polyanionic compound, the negative active material contains a carbon material, the separator includes a substrate layer including a porous polyolefin-based resin film, the substrate layer contains inorganic particles, and the separator has an air permeability per unit thickness of 4.0 seconds/(100 cm 3 ·µm) or less.

公开(公告)号：EP4300697A1

公开(公告)日：2024-01-03

申请号：EP22759596.4

申请日：2022-02-21

申请人： Zeon Corporation

发明人： TAGUCHI Hiroyuki

IPC分类号： H01M50/443 ,  H01G11/06 ,  H01G11/52 ,  H01M4/13 ,  H01M50/434 ,  H01M50/446 ,  H01M50/451 ,  H01M50/489

摘要： A composition for an electrochemical device functional layer comprising a particulate polymer, a binder, and heat-resistant fine particles. The particulate polymer has a volume average particle diameter of 1.0 µm or more and 10.0 µm or less, and has a structure in which an intermediate portion which has the lowest glass transition temperature is sandwiched by an inner core portion and an outer shell portion each having a glass transition temperature higher than that of the intermediate portion.

公开(公告)号：EP3694020B1

公开(公告)日：2023-11-22

申请号：EP19821866.1

申请日：2019-06-07

发明人： LEE, Joo-Sung ,  LEE, A-Young

IPC分类号： H01M10/052 ,  H01G11/52 ,  H01M50/403 ,  H01M50/446 ,  H01G9/02 ,  H01M50/417 ,  H01M50/426 ,  H01M50/443 ,  H01M50/457 ,  H01M50/489 ,  H01M10/054 ,  H01M50/431 ,  H01M10/0525

公开(公告)号：EP4235933A3

公开(公告)日：2023-11-08

申请号：EP23176142.0

申请日：2019-10-11

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Zhang, Xun ,  Kuroki, Ryo ,  Fukunaga, Yuki ,  Kobayashi, Hiromi ,  Saito, Mitsuko

IPC分类号： H01M50/403 ,  H01M50/417 ,  C08J3/24 ,  C08J9/36 ,  H01G11/52 ,  H01M10/052 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587 ,  C08J9/28 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0568 ,  H01M50/411 ,  H01M50/489 ,  H01M50/491 ,  H01M50/494 ,  H01M50/406

摘要： A separator for an electricity storage device, consisting of a polyolefin microporous membrane, wherein in solid viscoelasticity measurement of the separator for an electricity storage device from the membrane softening transition temperature to the membrane rupture temperature, the mean storage modulus is 1.0 MPa to 12 MPa and the mean loss modulus is 0.5 MPa to 10 MPa.